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Document ID (ISN)54188
CIS number 90-1272
ISSN - Serial title 0009-9309 - Clinical Toxicology
Year 1988
Convention or series no.
Author(s) Ballantyne B.
Title Toxicology and hazard evaluation of cyanide fumigation powders
Bibliographic information 1988, Vol.26, No.5/6, p.325-335. Illus. 8 ref.
Abstract The typical fumigant powder is a mixture of 40% sodium cyanide (NaCN) and 60% kaolin. The acute oral toxicity of the mixture is proportional to its NaCN content; kaolin does not modify the toxicity of the NaCN. Release of hydrogen cyanide (HCN) gas from wetted powder gave potentially lethal concentrations of HCN at an application rate of 5g/m3, which is 5 times the recommended rate. The concentration produced by 1g/m3 was significant but not lethal. Application of fumigant powder to the eyes of rabbits produced conjunctivities and keratitis, and was ultimately lethal. Lethal amounts of cyanide were absorbed by abraded skin and moist intact skin, but not by dry intact skin. Thus, protective clothing and equipment should always be worn when cyanide fumigant powders are handled.
Descriptors (primary) cyanides; pesticides; horticulture; toxicity evaluation; fumigants
Descriptors (secondary) hydrocyanic acid; animal experiments; skin absorption; sodium cyanide
Document type D - Periodical articles
Subject(s) Toxic and dangerous substances
Broad subject area(s) Chemical safety
Browse category(ies) Toxicology
Inorganic substances
Agricultural chemicals